<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link href="assets/css/animation.css" type="text/css" rel="stylesheet" />
    <link href="assets/css/site.css" type="text/css" rel="stylesheet" />
    <link href="assets/css/login.css" type="text/css" rel="stylesheet" />
</head>
<body>
    <div class="container">
        <div class="title"></div>
        <form>
            <div class="formItem">
                <input type="text" placeholder="用户名（有效手机号）" pattern="^1[0-9]{10}$" title="手机格式不正确" required />
            </div>
            <div class="formItem pwdItem">
                <input type="password" placeholder="密码（最少六个字符）" pattern="^[a-zA-Z0-9]{6,20}$" required />
            </div>
            <div class="formItem btnItem">
                <button>登录</button>
            </div>
            <div style="width:360px;margin:auto;margin-top:10px;">
                <input type="checkbox" />记住我
            </div>
        </form>
    </div>
</body>
</html>